Weight/Volume at Temperature

What is grain per square millimeter?

The grain per square millimeter surface density measurement unit is used to measure area in square millimeters in order to estimate weight or mass in grains. The surface density is used to measure the thickness of paper, fabric and other thin materials.read more...»

What is dynamic viscosity or absolute viscosity measurement?

Viscosity is a measure of how resistive a fluid is to flow. Viscosity describes how thick a fluid is, e.g. honey is more resistive to flow than water, and so it is said, that honey is thick or more viscous, i.e. having a higher viscosity, than water.read more...»